Gill's Historical Index To Gems And Jewelry Online - by Joseph O. Gill 2009, Appendix 1 - Origins Gill's Historical Index Online, A 350 Year Annotated Index of Gemology & It's Creator Joseph O Gill,BSC, GG, FGA, retired director of Jewelry at Sotheby's North America -- Many unique documents and historical background from famous gemologist and jewelers will give this enhance this text GO TOO: https://archive.org/search.php?query=joseph%20O.%20Gill to see the many other interesting text that I have contributed to this wonderful web site. SEE Gill's Historical Index To Gems And Jewelry Online - by Joseph O. Gill 2009 (in WORD 2007)https://archive.org/details/GillsHistoricalIndexToGemsAndJewelryOnline